Gardner Denver HD-2250, Operating And Service Manual

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equipment damage due to explosion,
fire, extreme cold or chemical attack.
Never operate a pump which is pumping
hydrocarbons or other flammable, hot, cold,
or corrosive fluids when any part of the
pump, suction system or discharge system
is leaking. Stop the pump immediately if
any leakage, other than a few drops per
minute of packing weepage, is observed.
Keep all flame, sparks, or hot objects away
from any part of the pump, suction system,
or discharge system. Shield the pump,
suction system and discharge system to
prevent any flammable, hot, cold or
corrosive fluid leakage from dripping or
spraying on any components, flame, sparks,
hot objects or people. Inspect the plungers,
packing, gaskets and seals for fluid leakage
frequently and replace all worn or leaking
parts.
Selection of the proper gaskets, seals and
stuffing box packing is even more critical
when flammable, hot, cold or corrosive
fluids are being pumped than when other,
inherently less dangerous fluids are used.
Contact
a Gardner Denver service
representative for assistance in selecting
the proper gaskets, seals and packing
before beginning operation.
Since some packing weepage into the
cradle area is inevitable, a drain located
below the bottom of the cradle must be
connected to a drain line which conducts the
fluid leakage to a collection container
located in a protected area. The entire
drain system and container must be
constructed of materials resistant to attack
from the pumped fluid or from explosion or
fire of the pumped fluid. Heavy duty
cradle covers must be securely fastened
in the proper position on the pump at all
times when the pump is operating. If the
pumped fluid releases harmful, explosive
or flammable vapors the covers must be
vented to conduct the fumes away from
the pump unit to a non-hazardous area.
Before beginning pumping operations or
starting the pump power source (whether an
engine or electric motor) check the
atmosphere all around the pumping site for
the presence of flammable or explosive
vapors. Do not begin operation and stop
ongoing operation if flammable or explosive
vapors are detected. Hot surfaces, sparks,
electric current or engine exhaust could
ignite flammable or explosive vapors. Each
engine used as a power source on pumping
units where flammable or explosive vapors
could form should be equipped with an air
inlet shut-off. If flammable or explosive
vapors are present in the pumping site
atmosphere, an engine could continue to
run on these vapors even after the engine
fuel line is shut-off if an air inlet shut-off is
not used.
In addition, on pumping units used where
flammable or explosive vapors could form,
all electric motors used as power sources
must be of explosion proof construction and
all electrical components and wiring must
meet the current National Electrical Code
for explosive atmospheres.
These precautions must be taken to avoid
possible personal injury, death and/or
equipment damage from explosion, fire or
burns.
HIGH PRESSURE LIQUID JETTING,
BLASTING AND CLEANING
DANGER
Extreme caution must be exercised if
any type of wand, gun, nozzle or any
other pressure and flow directing
device is attached to the pump
discharge system for use in jetting,
blasting, cleaning, etc. This type of
equipment must be used by trained,
experienced
operators with the
utmost care. High pressure fluid
streams can either by direct contact
or by propelling loose objects, cause
serious personal injury or death to
operators and/or other persons.